Question

va rog urgent ..45 de puncte si coroana ......ajutor

Answer 1

1.
x1x3
a)
1113
1143
5113
4123
2143
3133
6123
2163
4113
4143
4173
7153
5173
1173
2103
2133
2163
5103
2193
3123
3153
3183
5133
5163
6153
5193
6123
6183
7113
7143
7173
8103
8133
8193
9123
9153
9183
b)
1143
2133
3123
4113
5103
6093
7083
8073
9063

2.
52x
a) 520,522,524,526,528
b) 520,525
c) 520
d) 524,528
e) 525

3.
6x7x
a) 6070,6072,6270,6272,6274,6276,6276,6278,6470,6472,6474,6476,6478,6670,6672,6674,6676,6678.
b) 6070,6170,6270,6370,6470,6570,6670,6770,6870,6970,6075,6175,6275,6375,6475,6575,6675,6775,6875,6975
c) 6070,6170,6270,6370,6470,6570,6670,6770,6870,6970
d)6071,6171,6271,6371,6471,6471,6571,6671,6771,6871,6971 ,6075,6175,6275,6375,6475,6575,6675,6775,6875,6975, 6079,6179,6279,6379,6479,6579,6679,6779,6879,6979
e) 6075,6175,6275,6375,6475,6575,6675,6775,6875,6975
f) 6070,6170,6270,6370,6470,6570,6670,6770,6870,6970

3.
a) 5
b) 10,95
c) 100 ,995
d) 1000,9995

4.
a) 2,8
b) 10,98
c) 100 ,998
d) 1000,9998